16x160led点阵 89s51 8255 74ls164

单脉冲启动报警，8253的记数功能，8255接口，报警实现用红灯五圈，绿灯五圈来提示。-monopulse alarm activated, the entry number 8253 features 8255 interface, alarm achieve five laps with a red light, green five laps to suggest.

本程序为某有线电视控制系统控制卡的动态链接库，控制卡的接口芯片为INTEL 8255。-This program controls the dynamic link library card for a cable control systems, control card interface chip for the INTEL 8255.